astrochronology
The dating of sedimentary units by calibration with astronomically tuned time scalesThe dating of sedimentary units by calibration with astronomically tuned time scales.
Meaning
1 senses(uncountable)The dating of sedimentary units by calibration with astronomically tuned time scales.
Origin
From astro- + chronology.From astro- + chronology.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable